CAJ | 학술논문

PBO纤维因其具有高强度、高模量、高耐热性以及高化学稳定性等性能而被公认为目前综合性能最好的有机纤维。对自制的初生PBO纤维分别在500℃、550℃、600℃、650℃和700℃进行高温热处理，并对处理后纤维的力学性能、耐热性能、表面形貌以及界面性能进行测试。结果表明，500℃下热处理后PBO纤维拉伸强度最大为4.72GPa，随着热处理温度升高，纤维的力学性能下降；600℃下热处理后PBO纤维的初始分解温度最高为641.3℃；随着热处理温度的提高，PBO纤维的表面粗糙度在增加，同时其界面剪切强度（IFSS）也随着温度的升高而增大。
PBO섬유인기구유고강도、고모량、고내열성이급고화학은정성등성능이피공인위목전종합성능최호적유궤섬유。대자제적초생PBO섬유분별재500℃、550℃、600℃、650℃화700℃진행고온열처리，병대처리후섬유적역학성능、내열성능、표면형모이급계면성능진행측시。결과표명，500℃하열처리후PBO섬유랍신강도최대위4.72GPa，수착열처리온도승고，섬유적역학성능하강；600℃하열처리후PBO섬유적초시분해온도최고위641.3℃；수착열처리온도적제고，PBO섬유적표면조조도재증가，동시기계면전절강도（IFSS）야수착온도적승고이증대。
The PBO fiber have been recognized as the organic fibers with best overall performance, because of its high strength and modulus, excellent heat resistance and good chemical stability, etc. The homemade newborn PBO fiber is heat treated at high temperature, such as 500℃, 550℃, 600℃, 650℃ and 700℃, and the mechanical properties, heat resistance, surface morphology and interfacial properties of the fibers are tested after treatment. The results show that after heat treatment at 500℃, the tensile strength of PBO fiber is up to 4.72GPa, the mechanical properties of the fibers decreases as the heat treatment temperature increasing; the initial decomposition temperature of PBO fibers is up to 641.3℃ after being treated at 600℃; the surface roughness of PBO fibers increases with heat treatment temperature raising, meanwhile its interfacial shear strength (IFSS) also increases.